Lamp arm with reinforcing cup for an electric lamp socket mounted thereon



Sept. 18, 1951 1 BQLTUCH 2,568,537

LAMP ARM WITH REINFORCING CUP FOR AN ELECTRIC LAMP SOCKET MOUNTED THEREON Filed NOV. 10, 1949 W L W i9 Elm? INVENT OR Jed/a Zoliw',

ATTORNEY Patented Sept. 18, 1951 LAMP ARM WITH. REINFORGING CUP FOR AN ELECTRIC LAMP THEREON SOCKET MOUNTED Leon Boltuch, Bronx, N. Y. Application November 10, 1949, Serial--No.-126,582 2 Claims. (01. 240-81) The present invention relates generally to a lamp assembly and is more particularly directed to the combination of cooperating elementswhich serve to receive and support an electric lamp and shades or reflectors associated therewith.

One object of the present invention is to provide a structure of the type described and which comprises, in addition to the customary socket, a pair of cooperating shields or reflectors and a single unit which holds the several elements in fixed assembly and. still permits of a ready and facile disassembly of the elements.

Other objects of the invention will be understood by persons skilled in the art to which it relates by referring to the following specification and the accompanying drawings which illustrate one specific embodiment of the invention; it be- ,ing understood that variations thereof falling within the scope of appended claims will be apparent to persons skilled in the art.

In the drawings:

Fig. 1 shows the lamp assembly with some of the parts partly in section.

Fig. 2 is a sectional View on line 2-2' of Fig. 1.

Fig. 3 is a perspective of the shade assembly unit.

Fig. 4 shows a modified construction of one part of the assembly.

Referring more specifically to the drawings,

the invention is shown as embodied in a table lamp or desk lamp; it will be understood, however, that the invention is also applicable to floor lamps. In the invention as shown, the arm supporting the lamp is provided with universal movement with reference to the standard and.-

is automatically held in any desired adjusted position. This is obtained by means of the unit generally indicated by the reference character 8 and which permits for vertical movement on the standard 9, horizontal movement on the standard 9, as well as rotary movement of the arm l within the unit 8. The specific construction embodied in the unit 8 and which provides for this universal adjustment of the lamp assembly and lamp arm [0 on the standard 9 is described of the aperture I2 and thus provides for the ingress dielectric conductors through the tubular arm 10. The cup-shaped element H is made of relatively heavy material for it is designed to 16 which rests on the upper edge of-the cup H.

The upper end of the cylindricalportion l5 flows into anoutwardly flared portion ll, this being followed by the curved portion l8 and theupright cylindrical portion IS with its outwardly turned beaded edge 20. The specific design and shape of the spun aluminum housing l3 maybe varied as desired to obtain a variety of ornamental efiects. Several of the parts of the specific configuration of this housing, however, are functional in that they cooperate with the other elements of the assembly as will be understood from the further description of the invention.

The lamp socket 2| is carried bythe bracket 22 which is provided at its lower end with an interl-orly threaded nipple 2d restingonthe bottom of the housing [3. Anexteriorly threaded rod or tube 25 engages the nipple 24 and extends below the cup H where it receives the interiorly threaded cap screw 25 for completing the assembly of the cup ll, housing l3- and socket IS. The switch operator 26 passes through an aperture in the portion W of the housing t3.

One feature of the present invention resides in providing this typeof lamp with a pair ofcooperating shades and reflectors which may be readily assembled and firmly secured together. The

two cooperating reflectors in the present embodiment of the invention are reflectors 21- and 28 which, as will be seen, face each other and cooperate to reflect the light of the lamp 29 into the space below and around the lamp. The reflector 21 may be made of any suitable material but in the present invention it is made of spun aluminum painted white and is shaped and mounted in the manner shown to serve as a light shield and to reflect the downwardly directed light from the lamp 29 onto the shade or reflector 28. The reflector or shield 27 is provided at of the flange 3|. that if desired the flange 31 may engage the porremaining elements of the lamp assembly. This I unit generally indicated by the reference character 32 comprises a steel sleeve 33 and a steel wire harp. The sleeve 33 has two cylindrical portions 34 and 35, the latter being reduced insize as compared with 34 and having an outer diameter that closely approximates theinner diameter of the portion l5 of the housing l3. In order to take advantage of the resiliency residing in sleeve 35, it may be provided with a pair of longitudinal slits '36, as shown. Thus the shade sup- "port 32, when placed within the housing l3 as shown, engages the interior face of the cylindrical portion with considerable friction and resilience and the same is held firmly in position. The

cylinder 35,- instead of being in frictional engagement over a large area of the interior of the housing, may be provided with nibs 50 for frictional engagement with the interior of the housing; The upper cylindrical portion 34 is provided with an outwardly turned flange 31 which engages the lower portion of the shield 21 and firmly secures the same in position. As shown in the drawings, the flange 31 engages the upper face It will be understood, however,

tion of the shield 21 which is immediately adjacent the cylindrical part 33 and thus hold the T several parts secured together by such frictional engagement.

The harp 34 has its lower ends soldered to the portion 34 of the steel sleeve and is bowed as shown. At its upper end, the harp 34 carries I firmly secured thereto a 'metal washer 38 and a threaded rod or bolt 39, the latter having a head 40 as shown, which is received by a central opening in the inverted shade 28. The harp 34 essentially consists of a pair of arms, each attached to the steel sleeve or cylinder and which join at their upper ends to support and secure in position the shield or reflector 28. The shade is preferably provided with a circular series of openings 41 for ventilation. A spacer 42, which may be in the form of an inverted cup with a suitable aperture, fits over the rod 39 and supports the inverted dish shaped plate 43 which is held in position by the cap screw 44. The plate 43 extends over and is spaced from the openings 4| and serves as a hood for such openings.

It will now be understood that in the present construction the parts are assembled with great facility and after assembly they are all held together, securely and firmly, by means of the two cap screws 25 and 44, one at the lower end of the assembly and the other at the upper end of the assembly. The arrangement of the two cooperating reflectors 21 and 28 may be varied as desired. In the preferred embodiment of the invention, the smaller and upwardly directed rethe steelflector 21 extends into or overlaps the larger upper and downwardly directed shade 28. Thus the lamp 29 is shielded and the light therefrom is directed onto the desired area of illumination. The socket and its housing, after assembly, are held securely together by the cap nut 25 and the two reflectors, together with the hood 43, are assembled and held together by assembly unit 32 and the cap screw 44.

Fig. 4 illustrates a modification of one part of 1 the lamp assembly. In this form the cup-shaped spacer 42 is elimintaed as a separate element and in lieu thereof the'hood 43 in the modified form of the invention is provided with a depressed cupshaped portion 42 which serves in lieu of the cup 42. 'The bottom of the depression 42 is provided with an opening to receive the threaded bolt 39 and the interiorly threaded cap 34 completes the assembly as in the form shown in Fig. 1.

I claim: v

l. A lamp assembly comprising a st'and,-'a hollow arm carried by the stand, a relatively shallow cup shaped supporting element integral with said arm and in communication therewith, said supporting element being made of relatively heavy metal, a housing made of relatively light metal and having a relatively deep cup shaped portion, the bottom of the housing being disposed and fitting snugly within said supporting element, a

bracket disposed within and resting on the bot tom of said housing, a lamp socket fixedly carried by the bracket, a threaded assembly unit passing through the bracket and through the bottoms of said housing and support, and a cap nut on the end of the assembly unit for holding the bracket socket, housing, and support in fixed assembly.

having a reduced diameter and disposed snugly 45 within the support, the housing having a shoulder adjacent the reduced diameter portion, the shoulder resting on the upper edge of the support, a bracket disposed within and resting on the bottom of the housing, a lamp socket fixedly carried by the bracket, and a threaded assembly unit passing through the bracket and bottoms of said housing and said support and serving to secure the socket, bracket, housing and support in firm assembly. v

LEON BOLTUCI-I.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,382,215 Mordey June 21, 1921 1,965,722 Phillips July 10, 1934 2,065,599 McKay Dec. 29, 1936 2 ,071,612 Chanock Feb. 23, 1937 2,138,373 Doane Nov. 29, 1938 2,424,908 Willenbacher July 29, 1947 

